1. Tardigrade
  2. Question
  3. Chemistry
  4. It is believed that atoms combine with each other such that the outermost shell acquires a stable configuration of 8 electrons. If stability were attained with 6 electrons rather than 8; what would be the formula of the stable fluoride ion?

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Q. It is believed that atoms combine with each other such that the outermost shell acquires a stable configuration of $8$ electrons. If stability were attained with $6$ electrons rather than $8$; what would be the formula of the stable fluoride ion?

Delhi UMET/DPMTDelhi UMET/DPMT 2009Classification of Elements and Periodicity in Properties

Solution:

If stability is attained with $6$ electrons, the stable ion will contain $6$ electrons in its valency shell...
Electronic configuration of...
[a] $F^{-}=2,8$
[b] $F^{+}=2,6$
[c] $F^{2+}=2,5 $
[d] $F^{3+}=2,4$
Therefore, $F^{+}$ion will be the most stable ion.